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Installation Planning
975-0053-01-01 2–3
Locating the Sun Tie XR
The Sun Tie XR should be installed in locations that meet the following
requirements:
Routing the wires
Typical
configurations
Determine all wire routes to and from the Sun Tie XR. Typical routing
configurations include:
• AC wiring from the Sun Tie XR to the main service panel
• DC input wiring from the PV array to the Sun Tie XR
• DC ground from the PV array to an external ground rod
Vertical The UL listing for the Sun Tie XR requires it
to be mounted vertically.
Dry When the Sun Tie is mounted outdoors, attach
the optional Rain Shield (STRS) to prevent
water entering the unit.
Temperature The unit meets specifications from 32 to
113 °F (0 to 45 °C) but will operate within the
temperature extremes of most climates—from
-38 to 113 °F (-39 to 45 °C). At extreme cold
temperatures the LCD display may not
function normally and it is recommended that
an indoor-mounted Remote Monitor be used.
At temperatures above 45 °C, the unit begins
derating power. See “Temperature Derating
Curve” on page A–6.
Ground clearance The Sun Tie requires at least 36 inches (100
cm) of clearance between the bottom of the
unit and the ground.
Dust free Dust can be drawn inside and accumulate
within the unit, interfering with wiring
connections and ventilation.
WARNING: SHOCK HAZARD
Do not install the Sun Tie XR unit outdoors without the Rain
Shield. Water entering the unit could cause a dangerous
condition and cause the unit to fail. Failure due to improper
installation will void the warranty.